381542 has 8 divisors (see below), whose sum is σ = 654096. Its totient is φ = 163512.

The previous prime is 381541. The next prime is 381559. The reversal of 381542 is 245183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 381542.

It is not an unprimeable number, because it can be changed into a prime (381541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13613 + ... + 13640.

It is an arithmetic number, because the mean of its divisors is an integer number (81762).

2³⁸¹⁵⁴² is an apocalyptic number.

381542 is a deficient number, since it is larger than the sum of its proper divisors (272554).

381542 is a wasteful number, since it uses less digits than its factorization.

381542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27262.

The product of its digits is 960, while the sum is 23.

The square root of 381542 is about 617.6908611919. The cubic root of 381542 is about 72.5294054321.

The spelling of 381542 in words is "three hundred eighty-one thousand, five hundred forty-two".